It indicates how much primary energy is used to generate a unit of electricity or a unit of useable thermal energy.
Primary energy factor electricity.
Iinas 5 pef of eu 28 electricity development of primary energy factors of el ectricity generation in the eu 28 from 2010 2013 2 2 results for the primary energy factors in the eu 28 using the refined gemis database the results for the primary energy factor pef were calculated and are given in the following table.
It is calculated by applying conversion factors which vary by fuel type to tfc.
A primary energy factor p ef connects primary and final energy.
Thus 1 gj of natural gas delivered to a building may have a pef of for example.
Where primary energy is used to describe fossil fuels the embodied energy of the fuel is available as thermal energy and.
Having found the primary energy factors for the fuels that are used in the production of electricity a weighted average using these projections gives the primary energy factor for electricity.
Different national electricity mixes calculation methodologies and a constantly.
A significant portion of uk electricity is now generated using renewable sources like wind and solar energy.
Electricity is a final energy carrier produced from different primary energy sources including fossil energy fuels.
In this respect the methodological choice of the commission is no doubt the most appropriate the alternative being applying a pef of 0.
Only generation is considered the primary energy factor of electricity can be calculated by dividing the raw primary energy demand of electricity generation by the electricity produced.
Projections of the electricity grid mix.
Primary energy conversion factors.
What is the primary energy factor.
Tper accounts for the energy that is consumed and or lost in transformation transmission and distribution processes.
Primary energy pe is an energy form found in nature that has not been subjected to any human engineered conversion process.
Primary energy factors for electricity in europe will also be subject to changes as the share of renewables progresses towards 2050 adds to the problem of assessing building performance.
Regarding the primary energy factor applied to electricity from non combustible renewable sources for electricity pv wind and hydro the choice to apply a pef 1 is already quite generous7.
Non renewable primary energy while permitting values that do not have a strictly physical basis.
Primary energy factors pef is calculated as the inverse ratio between the amount of delivered energy in say gj and the primary energy required to provide it.
